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Spots Global Cancer Trial Database for DPCP to Treat Cutaneous Neurofibromas Associated With NF1

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Trial Identification

Brief Title: DPCP to Treat Cutaneous Neurofibromas Associated With NF1

Official Title: A Phase I, Open Label Study Employing the Topical Immunomodulator Diphencyprone to Treat Cutaneous Neurofibromas Associated With NF1

Study ID: NCT05438290

Interventions

DPCP

Study Description

Brief Summary: Neurofibromatosis type 1 (NF1) is the most common genetic tumor predisposition syndrome, affecting up to 1 in 2500 individuals. Cutaneous neurofibromas are benign with self-limited growth; however, tumor burden may be excessive, tumors do not regress, and they can be disfiguring, painful, and itchy. Currently, the only treatment is surgery or laser ablation; however, outcomes are limited by the number of tumors that can be simultaneously removed, operating room availability, and painful recovery, with significant risk of regrowth. There is a strong need for noninvasive topical treatments for cutaneous neurofibromas. Diphencyprone (DPCP) is a "hapten" medication, a small molecule that activates the immune system when applied topically, which has been investigated as a cutaneous immunotherapy for other skin conditions. This is an open label Phase I study looking at safety and tolerability of this treatment as a primary endpoint, and tumor treatment as a secondary endpoint. Approximately 30 subjects will be enrolled at a single center within the US. Subjects with a clinical diagnosis of NF1 who have measurable disease and at least 4 cutaneous neurofibromas, will have DPCP applied topically to their neurofibromas once weekly for 10 weeks.

Detailed Description: Each subject after consent will undergo a biopsy of one cutaneous neurofibroma prior to treatment. The participant will then undergo a sensitization treatment to "normal" skin as well as one neurofibroma to activate the immune system against the trial drug. 14 days after sensitization, patients will begin the first of 10 weekly treatment doses to a minimum of 3, up to 20 cutaneous neurofibromas. The participant may require up to 2 additional sensitization exposures. When the investigator has determined that sensitization has occurred, each subject will have a skin biopsy of one treated neurofibroma 3 days after initial treatment on Day 17 in order to investigate cellular and molecular effects of the treatment. The remainder of treatments will be applied once weekly on days 21, 28, 35, 42, 49, 56, 63, 70, and 77. The followup visit will occur on Day 107. Tumors will be photographed at screening and at each treatment visit, and in addition, whole body photography will be performed on Day 0 and Day 107 to assess for off-target effects on cutaneous neurofibromas that were not directly treated. On Day 107, a third cutaneous neurofibroma will be biopsied for molecular and immunohistopathological outcomes.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Icahn School of Medicine at Mount Sinai, New York, New York, United States

Contact Details

Name: Nicholas Gulati, MD, PhD

Affiliation: Icahn School of Medicine at Mount Sinai

Role: PRINCIPAL_INVESTIGATOR

Name: Rebecca Brown, MD, PhD

Affiliation: Icahn School of Medicine at Mount Sinai

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

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